The cheapest times to fly from ONT to PHX are
- August 6th to February 25th (except the weeks of November 19th, November 26th, and December 17th)
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ONT to PHX is early November. Prices can be as high as $1071 for Monday flights during late July, or as low as $165 for Saturday flights around early November.
When to Fly to Phoenix
Flying from Ontario, CA (ONT) to Phoenix, AZ (PHX) will usually cost between $177 to $316 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $184. Due to high demand the most expensive time to fly is late July, with an average price of $455. Planning your trip to low-cost times can easily save you $271 on economy flights and even more on first-class flights. Generally, any price below $195 can be considered a good price for a round-trip ONT to PHX flight.
See below for a graph of average weekly prices for the ONT to PHX route. All prices are for round-trip tickets in USD.
Compared to other flights, the ONT to PHX flight is much cheaper than the average and costs much less than the average flight leaving from Ontario. The average price per mile (for a direct flight) is $0.37, which is a bit above average.
Flight Prices by Day of the Week
Saturday is usually the cheapest day to depart and return on this flight. Mondays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $39 (16%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Saturday and returning a week later will cost an average of $207. Return trip prices are from the PHX to ONT flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from ONT to PHX can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 34 minutes may be realistic.
Flight Questions Answered
Still have questions about flying from ONT to PHX? We’ve got answers.
Which airlines fly this route?
You can find 6 major airlines flying this route most often: Alaska, American, Delta, Frontier, Southwest, United, and potentially more during busy seasons.
How far away is it from Phoenix Sky Harbor International Airport to Ontario International Airport?
The distance between the two airports is roughly 324 miles or 521 kilometers.
How long does it take to fly from ONT to PHX?
The real-world flight time for a nonstop ONT to PHX flight is about 1 hour 34 minutes.
How many flights go between Ontario, CA and Phoenix, AZ?
It depends on the day of the week and the date, but a typical day might have around 84 available flights from ONT to PHX.
Airport Location Info
|Origination airport name||Ontario International Airport|
|Country||the United States|
|Destination airport name||Phoenix Sky Harbor International Airport|
|Country||the United States|
Late and Early Flight Data
Flights from ONT to PHX tend to depart late far less frequently than the average flight. According to our recently updated data, 17% of flights departed 5 or more minutes late, and 25% of flights left 5 or more minutes early. On average you can expect to leave PHX heading for ONT about 3 minutes late. This does not significantly impact arrival time, as the average landing time in Phoenix, AZ is about 2 minutes early. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Southwest: 1 minutes late
- American: 7 minutes late
- Mesa: 5 minutes late
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.